exam Maths Puzzle Numerical Ability

What is the solution to the system of equations

x+3y=12
4x-y=-17

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exam Other Question

A business invest $10,000 in a saving account for two years. At the beginning of the second year, and additional $3500 is invested. At the end of the second year, the acount balan Triangle ABC has a right angle which is angle ABC and a line is formed called line segment ABD. Draw this figure and solve the problem.

If line segment AC is perpendicular to li